Re: XML collection not working

Ronald Roskens <[email protected]>
Newsgroups gmane.network.opennms.general
Message-ID <[email protected]> 
Does it work if you take out the handler-class parameter in the collectd-configuration.xml? The size of your XML is so small, that I don’t think VTD is going to make that much of a difference in speed for parsing it, so lets try with the default handler first. (You didn’t list which packages you have installed. The VTD handler isn’t installed by default and you need an extra package for it.

> On Jul 17, 2017, at 12:32 AM, JohnD Blackburn <[email protected]> wrote:
> 
> Hi all,
>  
> I have been trying to implement a custom monitor for CUPS printers using the XML collector, but I’m having problems getting it to collect any data.
>  
> Can someone please confirm that my configuration is correct, or let me know what I’ve missed.
>  
> We’re running opennms 20.0.1
>  
>  
>  
> I have a webserver set up that returns the metrics I care about in xml format:
>  
> [root@aue-s-opennms01 etc]# curl http://10.1.2.3:8000/printers.xml <http://10.1.2.3:8000/printers.xml>
> <?xml version="1.0" encoding="UTF-8"?>
> <printers>
>      <printer name="Printer1">
>            <njobs>5</njobs>
>      </printer>
>      <printer name="Printer2">
>            <njobs>0</njobs>
>      </printer>
>      <printer name="Printer3">
>            <njobs>0</njobs>
>      </printer>
> </printers>
>  
>  
> Here is (I think) all the relevant configuration bits:
>  
> xml-datacollection-config.xml:
>  
>     <xml-collection name="ABBCS-CUPS">
>         <rrd step="300">
>             <rra>RRA:AVERAGE:0.5:1:2016</rra>
>             <rra>RRA:AVERAGE:0.5:12:1488</rra>
>             <rra>RRA:AVERAGE:0.5:288:366</rra>
>             <rra>RRA:MAX:0.5:288:366</rra>
>             <rra>RRA:MIN:0.5:288:366</rra>
>         </rrd>
>         <xml-source url="http://{ipaddr}:8000/printers.xml">
>             <import-groups>xml-datacollection/CUPS-Printers.xml</import-groups>
>         </xml-source>
>     </xml-collection>
>  
>  
> xml-datacollection/CUPS-Printers.xml:
>  
> <xml-groups>
>     <xml-group name="CUPS-Printer-stats" resource-type="CUPSPrinters"
>                 resource-xpath="/printers/printer"
>                 key-xpath="@name">
>       <xml-object name="printerName" type="string" xpath="@name" />
>       <xml-object name="njobs" type="GAUGE" xpath="njobs" />
>     </xml-group>
> </xml-groups>
>  
> collectd-configuration.xml:
>  
>    <package name="ABBCS-CUPS">
>       <filter>(IPADDR != '0.0.0.0')</filter>
>       <include-range begin="1.1.1.1" end="254.254.254.254"/>
>       <include-range begin="::1" end="ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"/>
>       <service name="ABBCS-CUPS" interval="300000" user-defined="false" status="on">
>          <parameter key="collection" value="ABBCS-CUPS"/>
>          <parameter key="handler-class" value="org.opennms.protocols.xml.vtdxml.DefaultVTDXmlCollectionHandler"/>
>       </service>
>    </package>
>  
> …
>  
>    <collector service="ABBCS-CUPS" class-name="org.opennms.protocols.xml.collector.XmlCollector"/>
>  
>  
> datacollection-configuration.xml:
>  
> <?xml version="1.0"?>
> <datacollection-config rrdRepository="/opt/opennms/share/rrd/snmp/">
> …
>     <snmp-collection name="ABBCS" snmpStorageFlag="select">
>         <rrd step="300">
>             <rra>RRA:AVERAGE:0.5:1:8928</rra>
>             <rra>RRA:AVERAGE:0.5:12:8784</rra>
>             <rra>RRA:AVERAGE:0.5:480:366</rra>
>             <rra>RRA:MIN:0.5:12:8784</rra>
>             <rra>RRA:MAX:0.5:12:8784</rra>
>         </rrd>
> …
>         <include-collection dataCollectionGroup="ABBCS-CUPS"/>
>     </snmp-collection>
> </datacollection-config>
>  
>  
>  
> datacollection/ABBCS-CUPS.xml:
>  
> <datacollection-group name="ABBCS-CUPS">
>   <resourceType name="CUPSPrinters" label="CUPS Printers"
>    resourceLabel="Printer ${printerName}" >
>      <persistenceSelectorStrategy
>           class="org.opennms.netmgt.collection.support.PersistAllSelectorStrategy"/>
>      <storageStrategy
>           class="org.opennms.netmgt.collection.support.IndexStorageStrategy"/>
>   </resourceType>
> </datacollection-group>
>  
>  
> poller-configuration.xml:
>  
>    <package name="ABBCS-CUPS">
>       <filter>((IPADDR != '0.0.0.0') &amp; (catincServers))</filter>
>       <include-range begin="1.1.1.1" end="254.254.254.254"/>
>       <include-range begin="::1" end="ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"/>
>       <rrd step="300">
>          <rra>RRA:AVERAGE:0.5:1:2016</rra>
>          <rra>RRA:AVERAGE:0.5:12:1488</rra>
>          <rra>RRA:AVERAGE:0.5:288:366</rra>
>          <rra>RRA:MAX:0.5:288:366</rra>
>          <rra>RRA:MIN:0.5:288:366</rra>
>       </rrd>
>       <service name="ABBCS-CUPS" interval="300000" user-defined="false" status="on">
>          <parameter key="retry" value="1"/>
>          <parameter key="timeout" value="3000"/>
>          <parameter key="port" value="8000"/>
>          <parameter key="url" value="/printers.xml"/>
>          <parameter key="rrd-repository" value="/opt/opennms/share/rrd/response" />
>          <parameter key="rrd-base-name" value="cups" />
>          <parameter key="response" value="200-202,299"/>
>          <parameter key="response-text" value=".*printer.*"/>
>       </service>
>       <downtime begin="0" end="300000" interval="30000"/>
>       <downtime begin="300000" end="43200000" interval="300000"/>
>       <downtime begin="43200000" end="432000000" interval="600000"/>
>       <downtime begin="432000000" delete="true"/>
>    </package>
>  
> …
>  
>    <monitor service="ABBCS-CUPS" class-name="org.opennms.netmgt.poller.monitors.HttpMonitor"/>
>  
>  
> Any assistance greatly appreciated.
>  
> Regards,
> John Blackburn.
>  
>  
>  
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